Definition of mantissa in English:

mantissa

noun manˈtɪsəmænˈtɪsə

1Mathematics
The part of a logarithm after the decimal point.
〔数〕尾数
Example sentencesExamples
- By choosing appropriate mantissas and exponents, we can increase the resolution at shallower depths and degrade it at greater depths.
- The mantissa provides the significant information, or digits, and the exponent provides a scaling factor that shows how big the number is.
- Sharp and completely accurate visions of hexadecimal mantissas and binary fractions floated about my head, along with the sure and certain knowledge of how to convert them to something more useful.
2Computing
The part of a floating-point number which represents the significant digits of that number.
Example sentencesExamples
- If you recall, run-of-the-mill DSPs typically store numbers as a floating-point, 24-bit mantissa and an 8-bit exponent.
- In these cases, the 24-bit fixed standard is equivalent to the 24-bit mantissa, plus 8-bit exponent used in the 32-bit, floating-point version.
- Double-precision fixed-point would employ two times 24, or a 48-bit word length; double-precision floating-point would use a two times 32, or 64-bit mantissa.

Origin

Mid 17th century: from Latin, literally 'makeweight', perhaps from Etruscan.

Definition of mantissa in US English:

mantissa

nounmanˈtisəmænˈtɪsə

1Mathematics
The part of a logarithm that follows the decimal point.
〔数〕尾数
Example sentencesExamples
- The mantissa provides the significant information, or digits, and the exponent provides a scaling factor that shows how big the number is.
- Sharp and completely accurate visions of hexadecimal mantissas and binary fractions floated about my head, along with the sure and certain knowledge of how to convert them to something more useful.
- By choosing appropriate mantissas and exponents, we can increase the resolution at shallower depths and degrade it at greater depths.
2Computing
The part of a floating-point number that represents the significant digits of that number, and that is multiplied by the base raised to the exponent to give the actual value of the number.
〔计算机〕尾数
Example sentencesExamples
- Double-precision fixed-point would employ two times 24, or a 48-bit word length; double-precision floating-point would use a two times 32, or 64-bit mantissa.
- In these cases, the 24-bit fixed standard is equivalent to the 24-bit mantissa, plus 8-bit exponent used in the 32-bit, floating-point version.
- If you recall, run-of-the-mill DSPs typically store numbers as a floating-point, 24-bit mantissa and an 8-bit exponent.

Origin

Mid 17th century: from Latin, literally ‘makeweight’, perhaps from Etruscan.

单词	mantissa
释义	Definition of mantissa in English: mantissa noun manˈtɪsəmænˈtɪsə 1Mathematics The part of a logarithm after the decimal point. 〔数〕尾数 Example sentencesExamples By choosing appropriate mantissas and exponents, we can increase the resolution at shallower depths and degrade it at greater depths. The mantissa provides the significant information, or digits, and the exponent provides a scaling factor that shows how big the number is. Sharp and completely accurate visions of hexadecimal mantissas and binary fractions floated about my head, along with the sure and certain knowledge of how to convert them to something more useful. 2Computing The part of a floating-point number which represents the significant digits of that number. Example sentencesExamples If you recall, run-of-the-mill DSPs typically store numbers as a floating-point, 24-bit mantissa and an 8-bit exponent. In these cases, the 24-bit fixed standard is equivalent to the 24-bit mantissa, plus 8-bit exponent used in the 32-bit, floating-point version. Double-precision fixed-point would employ two times 24, or a 48-bit word length; double-precision floating-point would use a two times 32, or 64-bit mantissa. Origin Mid 17th century: from Latin, literally 'makeweight', perhaps from Etruscan. Definition of mantissa in US English: mantissa nounmanˈtisəmænˈtɪsə 1Mathematics The part of a logarithm that follows the decimal point. 〔数〕尾数 Example sentencesExamples The mantissa provides the significant information, or digits, and the exponent provides a scaling factor that shows how big the number is. Sharp and completely accurate visions of hexadecimal mantissas and binary fractions floated about my head, along with the sure and certain knowledge of how to convert them to something more useful. By choosing appropriate mantissas and exponents, we can increase the resolution at shallower depths and degrade it at greater depths. 2Computing The part of a floating-point number that represents the significant digits of that number, and that is multiplied by the base raised to the exponent to give the actual value of the number. 〔计算机〕尾数 Example sentencesExamples Double-precision fixed-point would employ two times 24, or a 48-bit word length; double-precision floating-point would use a two times 32, or 64-bit mantissa. In these cases, the 24-bit fixed standard is equivalent to the 24-bit mantissa, plus 8-bit exponent used in the 32-bit, floating-point version. If you recall, run-of-the-mill DSPs typically store numbers as a floating-point, 24-bit mantissa and an 8-bit exponent. Origin Mid 17th century: from Latin, literally ‘makeweight’, perhaps from Etruscan.
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